#define _CRT_SECURE_NO_WARNINGS 1
#include <stdio.h>

int main() {
    char word=0;
    while (scanf("%c", &word) != EOF)
    {
        if (word != 'a' || word != 'A' || word != 'e' || word != 'E' || word != 'i' || word != 'I' || word != 'o' || word != 'O' || word != 'u' || word != 'U')
        {
            printf("Consonant\n");
        }
        else
        {
            printf("Vowel\n");

        }
    }
    return 0;
}